PDS_VERSION = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 1997-03-13 NOTE = "MGS RST Instrument Health Report HEA7072A.TXT" END_OBJECT = TEXT END Miscellaney =========== I will be attending the MGS SDVT meeting at JPL tomorrow. Given that the weekend follows, there may not be another RST Instrument Health Report until Monday. Engineering Data ================ Engineering Data Statistical Summary from CSV2STAT: First SCET: 1997-03-12T00:00:00.141 Last SCET: 1997-03-12T23:59:59.637 CHANNL CHANNEL TITLE DN-LO DN-HI EU-LO EU-HI EU-AVG/STDEV RECDS ------ ------------- ----- ----- --------- --------- ---------/-------- ----- L-0037 MOT1_USO_ENA 0 0 18576 L-0047 MOT2_USO_ENA 1 1 18576 L-0053 RF_SW_OSC 1 1 18576 L-0060 TWTA1_FILMNT 0 0 18576 L-0061 TWTA1_HV 0 0 18576 L-0070 TWTA2_FILMNT 1 1 18576 L-0071 TWTA2_HV 0 0 18576 L-0080 USO_PWR 0 0 18576 L-0090 KaBLE_STAT 0 0 18576 L-0091 KaBLE_ENABLE 0 0 18576 L-0111 MOT1_RCV_AGC 169 255 -1.52E+02 -1.23E+02 -1.28E+02/6.01E-02 9288 L-0121 MOT2_RCV_AGC 120 255 -1.53E+02 -1.08E+02 -1.14E+02/9.69E-02 9288 L-0131 TWTA1_HLX_I 0 1 -3.84E-02 -1.85E-02 -3.83E-02/1.15E-05 9288 L-0132 TWTA1_ANOD_V 0 2 -1.00E+03 -1.00E+03 -1.00E+03/3.37E-03 9288 L-0141 TWTA2_HLX_I 37 42 6.85E-01 7.85E-01 7.40E-01/1.51E-04 9288 L-0142 TWTA2_ANOD_V 58 63 -8.72E+02 -8.62E+02 -8.66E+02/1.38E-02 9288 L-0200 USO_REG_V 203 205 4.06E+00 4.10E+00 4.08E+00/8.02E-05 9288 L-0201 USO_OVEN_V 123 126 2.46E+00 2.52E+00 2.49E+00/9.99E-05 9288 T-0302 EPC1_T 135 140 1.89E+01 2.11E+01 2.01E+01/8.24E-03 2322 T-0303 EPC2_T 139 144 1.72E+01 1.94E+01 1.83E+01/8.57E-03 2322 T-0310 RF_ISOLTR1_T 206 210 1.50E+01 1.73E+01 1.62E+01/3.99E-03 9288 T-0311 RF_ISOLTR2_T 188 193 2.34E+01 2.53E+01 2.43E+01/2.93E-03 9288 T-0312 TWT1_T 206 212 1.37E+01 1.73E+01 1.57E+01/9.88E-03 2322 T-0313 TWT2_T 185 190 2.46E+01 2.64E+01 2.55E+01/7.82E-03 2322 T-0315 USO_T 173 177 1.09E+01 1.21E+01 1.14E+01/4.18E-03 2322 T-0316 KA_AMP_T 197 203 1.88E+01 2.17E+01 2.04E+01/5.58E-03 4644 L-0200 remains constant at 4.08 volts. L-0201 has dropped 0.01 volts to 2.49 volts from yesterday. T-0315 is down 0.7C from yesterday to 11.4C. It appears that KaBLE was not turned on yesterday. As a result, other thermal sources are visible. We are beginning to see a very small 100-minute oscillation in the T-0315 values. The amplitude of the 100-minute term in TWTA, EPC, RF_ISOLTR, and KA_AMP temperatures is somewhat larger (perhaps 1C peak-to-peak). Open Loop Data ============== Data Collection --------------- Data from USO Test #9 have been received. The query period started 136 seconds before the spacecraft went one-way, and ended 136 seconds before the spacecraft went back to two-way. There were 21 records missing; a retrans- mission is planned for tomorrow. The SNR estimate is probably low because 136 of the 179 seconds used in computing the first SNR had no signal. YYYY/DDD DSS DSP SAMP BW DSP BIT TRK REC RECS RECS FIRST START STOP RATE MODE RESN MODE LEN MSSG SNR -------- --- -------- -------- ---- ---- ---- ---- ---- ---- ----- ---- ----- 1997/072 45 11:30:00 13:30:00 5000 2000 2 12 1-W 1666 35979 21 ~53. Anomalies --------- Trish Priest reports that spurs at +/-650 Hz from the carrier were visible in real time; there were also spurs at low frequencies -- 60 and 180 Hz. A sinusoidal oscillation in carrier amplitude is visible at various points during the test in our quick-look results. An example is included as Figure 1, where the peak-to-peak amplitude remains stable at about 0.1 dB but the frequency changes. The 21 missing records occurred in two blocks: ODS records 11163-11182 were missing, and the single record 24083 was missing. Analyses -------- In light of the missing records, Joe Twicken has opted to postpone his frequency analyses until the retransmission has been completed tomorrow. Closed Loop Data ================ Data Collection --------------- We have obtained the following files from OSCAR and EPIC: ATDF: ODF: 97068C070.DAT;1 97070C071.DAT;1 97071C072.DAT;1 IONCAL: TROPCAL: WEATHER: UTPM: EOP: 970311-eop.long 970311-eop.short Figure Captions =============== 1. Amplitude modulation on MGS carrier during USO Test #9. Period of the modulation changes during the observation from about 18 sec on the left to 12 sec on the right. Figures ======= Appended plot(s) illustrate some of the points made in the text. Each plot is a PostScript file, created and printable on our SOPC. We assume that you can strip out the plot files and create hard copies on a machine in your area. Each PostScript plot file is delimited by three lines of text: ======================================================================= PostScript Figure n ======================================================================= where "n" is the figure number mentioned in the text. Virtually all PostScript file lines are less than 80 characters in length. But, in most files at about 100 lines from the beginning, there is a single line beginning "/DD " that is about 90 characters long. 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9 6 8 41 8 11 8 188 8 48 8 63 8 121 8 58 8 74 8 -302 8 -227 8 -52 8 -39 8 24 8 14 8 -37 8 -66 8 129 9 166 8 -63 8 108 8 58 8 95 8 75 8 150 8 -539 8 -168 8 108 8 7 8 -20 8 4 8 21 8 -80 8 84 8 111 8 14 9 36 8 191 8 90 8 -5 8 63 8 27 8 -465 8 -90 8 -233 8 73 8 -32 8 -5 8 164 8 102 8 116 8 -36 8 94 8 176 9 -51 8 70 8 -573 8 -3 8 -58 8 88 8 -15 8 -153 8 -5 8 183 8 106 8 -121 8 195 8 14 8 179 8 87 8 -47 8 123 9 17 8 88 8 189 8 125 8 -1 8 -134 8 -351 8 23 8 61 2136 2370 100 MP stroke 8 -67 8 11 8 9 8 43 8 -31 8 1 8 152 8 47 8 -36 9 53 8 -128 8 132 8 -50 8 9 8 -506 8 -122 8 -14 8 39 8 -53 8 -13 8 -124 8 27 8 85 8 -7 8 10 8 128 8 34 9 48 8 117 8 12 8 72 8 -541 8 -65 8 51 8 -29 8 69 8 -80 8 -110 8 176 8 131 8 2 8 -37 8 171 8 21 8 58 9 62 8 102 8 123 8 -39 8 -522 8 -119 8 67 8 -5 8 11 8 0 8 -69 8 78 8 -103 8 90 8 76 8 88 8 124 8 87 9 115 8 87 8 -4 8 86 8 -261 8 -201 8 -84 8 -99 8 135 8 -41 8 -14 8 11 8 -113 8 78 8 151 8 27 8 72 8 -54 9 61 8 114 8 40 8 45 8 -190 8 -339 8 -31 8 31 8 -37 8 35 8 -106 8 -117 8 101 8 159 8 65 8 5 8 98 8 37 1339 2762 100 MP stroke 9 14 8 45 8 79 8 183 8 -82 8 -549 8 -60 8 88 8 24 8 24 8 -5 8 59 8 78 8 -65 8 84 8 157 8 -78 8 177 9 10 8 111 8 9 8 -54 8 129 8 -219 8 -381 8 -44 8 55 8 14 8 23 8 -36 8 -99 8 27 8 59 8 127 8 64 8 100 9 -45 8 65 8 82 8 49 8 111 8 -23 8 0 8 -456 8 -98 8 -20 8 -37 8 -57 8 114 8 -29 8 -23 8 46 8 117 8 47 9 190 8 2 8 78 8 17 8 32 8 85 8 100 8 -96 8 96 8 -486 8 -105 8 -13 8 -29 8 -2 8 88 8 -101 8 12 8 31 9 6 8 204 8 174 8 -11 8 12 8 169 8 1 8 93 8 20 8 -27 8 126 8 13 8 26 8 -117 8 -280 8 5 8 33 8 42 9 -64 8 0 8 -24 8 -155 8 9 8 42 8 34 8 -32 8 129 541 2524 100 MP stroke 8 -51 8 -44 8 -34 8 100 8 -84 8 -497 8 -33 8 77 8 -16 9 -68 8 -72 8 6 8 -42 8 -29 8 17 8 151 8 74 8 -112 8 150 8 80 8 49 8 16 8 -81 8 91 8 140 8 -298 8 -361 9 -21 8 -88 8 81 8 45 8 -96 8 -10 8 55 8 86 8 46 8 -61 8 116 8 56 8 112 8 145 8 -26 8 30 8 70 8 91 9 111 8 -369 8 -185 8 -31 8 75 8 -92 8 -25 8 -22 8 84 8 -97 8 100 8 -31 8 157 8 97 8 99 8 70 8 112 8 178 9 -24 8 15 8 33 8 -110 1 9 0 2610 69 MP stroke gr 4113 652 mt (Exp date = 1997-03-13) s 4113 863 mt (File = 70721130.4P1) s 4113 1075 mt (Start time \(hours\) = 11.500) s 4113 1286 mt (Stop time \(hours\) = 13.500) s 4113 1497 mt (Int time \(sec\) = 1.000) s end eplot %%EndObject graph 1 epage end showpage %%Trailer %%BoundingBox: 50 197 543 604 %%Pages: 001 %%EOF ======================================================================= PostScript Figure end =======================================================================